活性炭管苯、甲苯、邻二甲苯标准物质的研制  

Study on Certified Reference Material of Benzene, Toluene,O Xylene in Charcoal

作　　者：黄雪祥[1] 吴文红[1] 李志力[1] 

机构地区：[1]中国预防医学科学院劳动卫生与职业病研究所

出　　处：《卫生研究》1998年第4期285-286,共2页Journal of Hygiene Research

基　　金：卫生部科研基金

摘　　要：经均匀性和稳定性检验证明苯、甲苯、邻二甲苯含量均匀，量值稳定性大于一年，经多家实验室定值，取得了准确的特性量值（μｇ），低含量：苯３８．８±３．７，甲苯９８．６±４．４，邻二甲苯９７．１±１．９；高含量：苯８６．０±６．３，甲苯１９４±７，邻二甲苯１９５±５。此标准物质已被国家技术监督局批准为标准物质。his certified reference material (CRM) of benzene,toluene and o xylene in charcoal is used for quility control and calibration of analytical instruments in the determination of benzene,toluene and o xylene in air.Homogeneity of benzene,toluene and o xylene concentrations in the CRM was testes by GC.The stability of the CRM was assessed for one year.The certified values are based on analysis made by a group of independent laboratoies using GC method.

关 键 词：标准物质 苯 甲苯 邻二甲苯 活性炭 

分 类 号：R135.12[医药卫生—劳动卫生]